kW DIY Solar Panel Kit with String Inverters (20,000 Watt)
Extreme Solar: 20kw DIY Solar Kit with String Inverters
The 20kW string inverter solar panel kit greatly surpasses most electric bills in the United States, which average 920kWh per month. This large-capacity kit provides 20,000 watts of power of DC current power and produces 2,000 to 3,000 kilowatt hours (kWh) of alternating current (AC) power per month. You’ll need at least 1,150 square feet of unobstructed ground-site space.
When powered by full sunlight, string inverter systems are a cost-effective solution for home solar installations. An unobstructed south-facing view of the sun will maximize your solar power. If your system is partially shaded by trees, chimneys or other obstructions, the string inverter output will drop along with the output of the whole system.
Due to National Electrical Code standards, Rapid shutdown systems are required. You can use this string inverter system on a rooftop if you purchase the additional Rapid shutdown devices to make this system NEC-compliant.
What’s Not Included
Wire, conduit, fittings, breakers, AC/DC Disconnects (if required), junction boxes and a sub panel (if required) can be purchased at any electrical supply shop, Home Depot or Lowes. Our technical support representative will provide a shopping list once your plans are complete.
Plans, interconnection and other services are available for an additional fee.
Will This Kit Work for Me?
If you’re looking to offset loads with a cost-effective system that combines the benefits of microinverters and string inverters, then this option may be a fit for you.
To be certain if this is the right kit for you, contact us for a free estimate and custom recommendations, personalized for your home’s energy needs.
Why Choose GoGreenSolar DIY Kits?
If you’re comfortable with reading and working from plans, diagrams and instructions, our DIY kits can cut your installation costs by as much as 60%. And, yes, you will still receive tax credits.
Another option is hybrid DIY installation where you do some, but not all, of the installation. Purchase the kit and ask for professional help when and where needed. If you reside in one of our service areas, we will be happy to refer you to installers. We can also help you determine which DIY approach is best for you.
Choose DIY Solar Installation
Did you know? You can install a solar panel system with some help within a weekend or a few depending on your trade skills. Not up to DIY? Hire one of your trusted contractors to install for you.
GoGreenSolar solar panel kits include a complimentary roof layout, installation support and permit approval guarantees so you don’t have to figure it out all on your own.
If you’re handy with tools, love learning new skills, or enjoy managing and completing projects, DIY solar installation could be ideal for you. Many DIYers take satisfaction in the process and are proud of the results!
Save thousands of dollars
Going DIY can save you 10,000 or more, depending on system size. Tax credits still apply for equipment, hardware and any other installation services you utilize.
Have more control over your solar project
You get to make decisions on equipment selection, location of solar panels and timeline for your installation.
End-to-end support with a money-back guarantee
GoGreenSolar is with you every step of the way during your installation. We’re also the only DIY solar company with a money-back guarantee. If your permit isn’t approved even after following our instructions we’ll provide a full refund.
Some permit applications may require one or more plan revisions and resubmissions. Please supply us with all information necessary to make these revisions. Permit must be applied for with the city within 30 days of delivery of the permit package and any resubmissions must be resubmitted within 14 days of receiving the revised plans.
Our guarantee does not apply to installations on unsafe structures, unpermitted structures, ground mounts, structural engineering, structures not constructed to local building codes and other atypical building designs. This guarantee only applies to our standard solar system kits, it does not apply to custom orders or solar systems not designed by our engineers.
Interested in this solar panel kit for your home or business?
Contact us for a free estimate, and we’ll provide custom recommendations that are personalized for your energy needs.
- Solar made easy with complete solar kits
- Permitting and tech support designed for DIYers
- Step by step installation support
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“Above N5m”: Man Installs 20kva Solar With Dry Cell Batteries for Constant Electricity, Puts Panels on Roof
A video of a Nigerian installing a 20kva solar system in his house on Lagos Island has many people talking and appreciating his energy independence. He won’t be the first to do such, as a man installed a 10kva recently.
In the clip shared on TikTok, a separate structure was built for the solar batteries.
Solar energy in Nigeria with dry cell batteries
The outdoor structure is a cage with iron bars surrounding it. Men who came to install it arranged the batteries in parallel.
Smart boy: This young genius impresses his dad with his DIY TV repair skills. future engineer in the making
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The inverter and charge controllers were installed after the dry cell batteries were set up. Atop the roof of the building were many solar panels for maximum sunlight reception. The video was shared by @ossecuritysystems.
In light of the increased cost of electricity, going solar seems to be a suitable option.
Watch the video below:
Legit.ng compiled some of the reactions below:
abdullahisani09 asked about wattage:
Man installs solar for electricity
Meanwhile, Legit.ng earlier reported that a young man, Mike, on TikTok, revealed how he got strong internet for his work despite living inside his SUV.
It gives me 24 hours electricity: Lady spends N6 million to install solar in her house, stops using ‘NEPA’
According to the software engineer, he uses a network booster to get service in an area with low coverage.
To ensure he had constant electricity, he installed solar panels on his vehicle.
Nigerian man goes fully solar
In similar news, a Nigerian man made a video to show how God helped him to start his mansion and finish the same. The structure wowed many people.
At the beginning of the video, the man showed the moment bricklayers dug and started the house’s foundation. He installed solar panels on his roof when the building was completed.
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How Big and Expensive Is a 20 kW Solar System?
First things first, a 20 kW solar installation is BIG!
The average home solar installation in the United States is 5.6 kW, so a 20 kW system is almost 4 times bigger!
If you’re interested in installing a 20 kW solar system, chances are this is a commercial installation or your electricity use is really high compared to the national average of about 900 kilowatt-hours per month. Maybe you live in an area that regularly sees summer temperatures over 100 degrees F and so you have to crank that air conditioning all summer to stay comfortable (AC is one of the biggest users of electricity in our homes!). Or maybe you live in a large house (read: mansion), so you have a lot of lighting and space to air condition. If this is the case, great! You are a prime candidate to go solar. The higher your electricity bill, generally the more you can save by installing a solar system.
Before you move forward, here’s an important tip to help you save bookoo bucks with your solar installation: Before installing solar, be sure to decrease your electricity use as much as possible. This is a great tip for anyone installing solar – and it should really be considered a prerequisite to solar – but homeowners installing large solar installations have the most to gain!
Lightbulbs, showerheads, sink faucets, and even insulation can be switched over to high-efficiency options, which lowers your electricity use, saves you money, and allows you to install a smaller solar installation (which obviously costs less). Think about this: replacing a single 60 watt incandescent bulb with an equivalent LED can save you around 200 over the life of the LED bulb. And that’s just one single LED! Imagine how much savings that adds up to in a big house! So before you decide a 20 kW installation is right for you, be sure to switch out those bulbs and install any other efficiency measures that reduce your electricity usage! After that, you’re ready to go solar!
How big is a 20 kW solar system?
There are many ways to look at the size of a 20 kW solar installation:
What does 20 kW actually mean?
A 20 kW solar installation can produce 20 kilowatts of electricity in a single instant in perfect conditions. If your 20 kW installation produces electricity for one hour in perfect conditions, it would produce 20 kWh (and a 5 kW solar system would produce 5 kWh in an hour). Easy, right?
How many solar panels is that?
A typical residential solar panels produces about 260 watts, so a 20 kW installation is made up of around 78 solar panels. If your solar panels are less efficient – say around 250 watts – that total goes up to 80 panels. If you use more expensive, high-efficiency solar panels like SolarWorld’s 300 watt Sun Modules, your total drops to just 67 panels!
How much space does that take on my roof?
The dimensions of most residential solar panels hover around 38” x 65” (roughly 3’x5’). With 78 panels, the total area of your solar installation is 1,372 sq feet – about half a tennis court (when playing doubles… just to clarify for all you tennis experts out there). If you don’t have that amount of open space in a single area of your roof – don’t worry! Solar panels can be installed anywhere there’s a free area, though most installers require space for at least 3 panels in each area. Microinverters – which optimize solar panels individually – are needed for this type of installation, but it’s a common strategy many homeowners with complex roofs or large installations employ.
How much does a 20 kW solar system cost?
The average cost to install a residential solar installation, according to the National Renewable Energy Lab, is 2.93 per watt. So, a 20 kilowatt installation that you pay for in cash upfront would total around 58,600!
That’s a staggering number, to be sure! However, solar homeowners are eligible to receive numerous federal, state, and local financial incentives to drive this cost down. For example, when we apply the 30% federal Residential Renewable Energy Tax Credit, that total costs drops down to 41,020, almost 20k less! Now we’re getting somewhere!
Check on your online for what additional incentives are available in your area. A great tool for this research is the federally-sponsored DSIRE (Database of State Incentives for Renewable and Efficiency), which summarizes all the different incentives available for going solar in each state, which can include anything from upfront rebates for a portion of the total cost to state sales tax exemptions and property tax exclusions. All these incentives drive your cost down even further, allowing you to save even more going solar!
40,000 still a little too much? Solar companies know that’s a lot of money for most homeowners. That’s why many solar installers offer leases, power purchase agreements, and loans to allow you to go solar with little investment – though your savings are also going to be less than a cash purchase.
How much money can I save with a 20 kW solar system?
How much a solar installation costs is important, but the real question is how much you can save. A solar installation is big money, but if you can save even bigger money over the life of the installation, then it’s all worth it, right? Well, installing a 20 kW system means big savings! Read on to see how.
To calculate the financial savings of a 20 kW solar system, we need to compare your total solar installation cost to your total cost of continuing to purchase electricity from the utility. Most in the solar industry usually assume a solar installation to last between 20 and 30 years, so we’ll split the difference and use 25 years in our calculations.
- As we saw, your total installation cost for a 20 kW solar system is 41,020 after the 30% federal tax credit. Your installation cost might even be lower if your state or utility offers additional incentives, but we won’t include those here.
- For this example, let’s say you live in North Carolina, where the average utility rate is 0.1178 per kWh. (Click the link to find your state’s average utility rate!)
- 41,020 and 0.1178 per kWh. How do we compare these two very different prices? We have to compare the same amount of electricity! To do this, we need to know how many kilowatt-hours of electricity a 20 kW system produces in North Carolina. Let’s go to the National Renewable Energy Lab’s no-cost online Solar Calculator, PV Watts, to find out.
- We plugged our numbers in PV Watts and found that a 20 kW installation in Charlotte, North Carolina, will produce 28,211 kWh per year. If we bought that amount of electricity from the utility, it would cost 3,323!
- So now we know a 20 kW solar system produces 28,211 kWh annually (and that 28,211 kWh would cost 3,323 from the utility) but what about the total cost over the next 25 years? We need to calculate this amount!
- First, solar panel production drops about 0.08% each year due to age, soiling, etc, so after 25 years your solar installation will have produced about 641,544 kWh!
- Utility rates typically increase about 2.5% each year on average, so we also need to add this to the mix. After 25 years, you would will have spent 116,078 buying 641,544 kWh.
- Subtracting your original solar investment from 116,078, we find that by installing a 20 kW solar installation, you can save 75,058 over 25 years! If electricity is more expensive in your area, or if your city or state offers solar rebates, your savings could be even higher!
So if you’re thinking about installing a large solar installation, chances are high that you will save a lot of money over the next 20 to 30 years. For a rough estimate of your own savings, follow the steps above!
The Price of a 20kW Solar System for Commercial Solar Projects
A 20kW solar system has now become a standard-sized solar system for small to medium-sized businesses looking to reduce their operating costs by powering their daytime electricity consumption from solar power.
Uptake of commercial solar installations in Australia has grown rapidly over the last two years thanks to a significant government rebate of approximately 12,000 on a 20kW system, and because the cost of solar power is now significantly cheaper than buying power from the grid for the vast majority of Australian businesses.
This article will provide a brief overview of the price of a 20kW solar system, potential power yields (in kWh), and financial returns that a business may expect.
The Price of a 20kW Solar System
The price of a fully installed 20kW system has fallen dramatically in recent years. The wholesale price of photovoltaic panels continues to be driven down by market conditions, in particular by the growth of solar in developing markets such as India and China.
A 20kW solar system is now less 1/4 of the price it was in 2008. This significant drop in initial outlay allows many businesses to see a return on their investment in well under 5 years, making it an attractive option even if you are leasing your premises.
As a rough guide, the price of a fully installed 20kW commercial solar system starts at around 16,000 – 18,000 and can save you up to around 8,000 a year on your power bills depending on the price you pay for your electricity and how much solar power you are able to use at the time it is generated.
Most businesses will then choose to upgrade their system to high-efficiency panels and to include the latest inverter and monitoring technology. This can increase both the price and the performance of the system. An absolute top-of-the-range system will be in the ballpark of 30,000-35,000 depending on the site.
Finding the right system for your needs will typically involve a discovery call with one of our representatives, who can run through the pros and cons of the different options.
There are a number of factors that need to be considered when installing a commercial solar system, hence installation costs can vary considerably. Solaray offers a full installation service, which means we will typically take care of council approval and an engineering certificate. Not all solar installers offer this level of service, however, it is a critical part of the process that ensures a safe installation, and it can also absolve board members of liability in the event of any issue with the roof over the life of the system.
Installation costs can also vary, for example, a shed or barn roof will have very few if any additional installation costs, whereas an apartment building or a ground-mounted array may have additional costs such as long cable runs, crane hire, and site preparation such as clearing trees and laying foundations.
Please contact the Solaray Commercial Team for more information. We can provide a full quotation with independent analyses and reports that are accepted and trusted by banks. We can also provide figures for commercial leasing arrangements with 0 money down, and immediate savings from your power bill. A commercial solar power system will often be cash flow positive from day one.
kW Solar System Details
Panels: 48 x 415W panels, for example.
Inverter: The choice of the inverter will depend on a number of different factors. Often we will install 2 x 10kW inverters to maximise reliability and flexibility with panel design. We only provide the leading models from the largest manufacturers including Enphase, SolarEdge, SMA and Fronius.
Mounting Kit: Solaray can design a mounting solution for most roof types. The two main exclusions are asbestos and slate roofs. For a flat concrete roof please contact us as this will typically require additional work such as waterproofing.
20kW Solar System Output in Sydney
As a general rule, a 20kW solar power system will output around 80 kWh a day averaged out across the year as illustrated in the image on the right. As illustrated, the system will output more power during the summer half of the year and less in winter. There are a number of factors that influence this figure and these include:
– The location of the system and the expected daily and annual solar irradiation and Cloud cover
– The orientation of the roof and the tilt angle of the solar panel array
– Whether there is any shade cast on the panels. For a roof with patchy shade, we recommend SolarEdge or Enphase for panel-level optimisation
– Operating temperature of the panels – it is important to use good quality panels that perform well on hot summer days.
– Whether the solar panel capacity is professionally matched to the inverter’s capacity. This is an important design consideration and our commercial team can discuss this with you in more detail.
– The quality of the individual components. For example, a panel from LG Solar may outperform a cheaper Chinese Made panel by 5% or more. This can result in further savings off your power bill, especially when extrapolated out over a year… or a decade.
A 20kW system installed in Sydney with no shade orientated north can generate up to and over 100 kWh on a sunny day in summer. In winter, when the days are shorter and the sun is lower in the sky, a 20kW system may only produce 60 kWh a day.
When you make an enquiry, our commercial solar team will ask you for a number of power bills to analyse when your business uses its power (both across the day and across the year) to accurately size up a solar power solution.
Financial Benefit of a 20kW Solar System in Sydney
A commercial solar power system in Sydney directly reduces your power bills by feeding solar power directly into the main phase of your power supply. Because of this, the potential savings of a solar system depend on how much you pay for your electricity, when you use your power and how much power you use at any one time.
As a rough guide, a 20kW solar system can save you up to approximately 8,000 (this figure will change depending on the price you pay for electricity). For more information please contact our commercial solar team.
With a possible return on investment now well under 5 years, a 20kW solar power solution is an attractive investment option for your business to reduce short to medium-term operating costs and improve the environmental profile of your business.